Results 21 to 30 of about 132,127 (279)
Can supermassive black hole shadows test the Kerr metric? [PDF]
Physical Review D, 2021 The unprecedented image of the M87* supermassive black hole has sparked some controversy over its usefulness as a test of the general relativistic Kerr metric.
K. Glampedakis, G. Pappas
semanticscholar +1 more source
Supermassive black holes [PDF]
Physics World, 2002 After a brief historical introduction, we summarize current efforts and accomplishments in the study of supermassive black holes.
Laura Ferrarese, David Merritt
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SUPERMASSIVE SEEDS FOR SUPERMASSIVE BLACK HOLES [PDF]
The Astrophysical Journal, 2013 9 pages, 2 figures; accepted for publication in ...
Hui Li +4 more
openaire +3 more sources
Supermassive black holes in BCGs [PDF]
Proceedings of the International Astronomical Union, 2006 AbstractWe observed a sample of three Brightest Cluster Galaxies (BCGs), Abell 1836-BCG, Abell 2052-BCG, and Abell 3565-BCG, with the Advanced Camera for Surveys (ACS) and the Imaging Spectrograph (STIS) on board the Space Telescope. For each target galaxy we obtained high-resolution spectroscopy of the Hα and [N II] λ6583 emission lines at three slit ...
Jordi Miralda-Escudé +6 more
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First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole [PDF]
, 2019 When surrounded by a transparent emission region, black holes are expected to reveal a dark shadow caused by gravitational light bending and photon capture at the event horizon.
The Event Horizon Telescope Collaboration
semanticscholar +1 more source
The Proper Motion of Sagittarius A*. III. The Case for a Supermassive Black Hole [PDF]
Astrophysical Journal, 2020 We report measurements with the Very Long Baseline Array of the proper motion of Sgr A* relative to two extragalactic radio sources spanning 18 yr. The apparent motion of Sgr A* is −6.411 ± 0.008 mas yr−1 along the Galactic plane and −0.219 ± 0.007 mas ...
M. Reid, A. Brunthaler
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Supermassive black holes and their environments [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 We make use of the first high--resolution hydrodynamic simulations of structure formation which self-consistently follows the build up of supermassive black holes introduced in Di Matteo et al. (2007) to investigate the relation between black holes (BH), host halo and large--scale environment.
Tiziana Di Matteo +2 more
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First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole [PDF]
Astrophysical Journal, 2019 We present the first Event Horizon Telescope (EHT) images of M87, using observations from April 2017 at 1.3 mm wavelength. These images show a prominent ring with a diameter of ~40 μas, consistent with the size and shape of the lensed photon orbit ...
K. Akiyama +214 more
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Supermassive black hole ancestors [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 12 pages, 9 figures, 1 table, MNRAS in ...
Andrea Ferrara +2 more
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Supermassive Black Holes in Bulges [PDF]
The Astrophysical Journal, 2001 26 pages, 11 Postscript figures, accepted for publication on ...
Gregory Rudnick +9 more
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